* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #fff;
    overflow-x: hidden;
    min-height: 100vh;
}

.background {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    z-index: -2;
}

.background::before {
    content: '';
    position: absolute;
    inset: -50%;
    background: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 0%, transparent 40%),
                radial-gradient(circle at 80% 70%, rgba(255,255,255,0.08) 0%, transparent 40%);
    animation: move 20s infinite linear;
    z-index: -1;
}

@keyframes move {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.glass {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.container {
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
}

h1 {
    text-align: center;
    margin-bottom: 18px;
    font-weight: 300;
    letter-spacing: 1px;
    font-size: 1.6rem;
}

.tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.tab {
    padding: 10px 24px;
    border: none;
    border-radius: 30px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    cursor: pointer;
    transition: 0.3s;
    font-size: 1rem;
    touch-action: manipulation;
}

.tab:hover, .tab.active {
    background: rgba(255,255,255,0.25);
}

.section {
    display: none;
}

.section.active {
    display: block;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    gap: 10px;
}

.calendar-header h2 {
    font-size: 1.2rem;
    margin: 0;
    text-align: center;
    flex: 1;
}

.nav-btn {
    background: rgba(255,255,255,0.15);
    border: none;
    color: #fff;
    font-size: 1.4rem;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    transition: 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    touch-action: manipulation;
}

.nav-btn:hover {
    background: rgba(255,255,255,0.3);
}

.weekdays, .calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
}

.weekdays div {
    text-align: center;
    font-weight: 600;
    padding: 8px 2px;
    color: rgba(255,255,255,0.8);
    font-size: 0.85rem;
}

.day {
    aspect-ratio: 1;
    background: rgba(255,255,255,0.05);
    border-radius: 10px;
    padding: 5px 4px 4px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transition: 0.2s;
    position: relative;
    overflow: hidden;
    min-height: 52px;
    border: 1px solid transparent;
    aspect-ratio: 1;
    background: rgba(255,255,255,0.05);
    border-radius: 10px;
    padding: 4px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transition: 0.2s;
    position: relative;
    overflow: hidden;
    min-height: 42px;
}

.day:hover, .day:active {
    background: rgba(255,255,255,0.15);
}

.day-number {
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1;
}

.day-dots {
    display: flex;
    gap: 3px;
    margin-top: auto;
    flex-wrap: wrap;
    width: 100%;
}

.dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

.dot.alta { background: #ff6b6b; }
.dot.media { background: #feca57; }
.dot.baja { background: #48dbfb; }

.glass-form {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
    padding: 14px;
    background: rgba(255,255,255,0.05);
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.1);
}

.glass-form input, .glass-form select {
    flex: 1 1 160px;
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.08);
    color: #fff;
    outline: none;
    font-size: 1rem;
}

.glass-form select option {
    background: rgba(20, 30, 50, 0.95);
    color: #fff;
}

.glass-form input::placeholder {
    color: rgba(255,255,255,0.5);
}

.glass-form button {
    padding: 12px 20px;
    border: none;
    border-radius: 10px;
    background: rgba(255,255,255,0.2);
    color: #fff;
    cursor: pointer;
    transition: 0.3s;
    font-size: 1rem;
    touch-action: manipulation;
}

.glass-form button:hover {
    background: rgba(255,255,255,0.35);
}

.subtitulo {
    margin: 18px 0 10px;
    font-size: 1.05rem;
    font-weight: 600;
    color: rgba(255,255,255,0.85);
    border-bottom: 1px solid rgba(255,255,255,0.15);
    padding-bottom: 6px;
}

.badge-vencido {
    display: inline-block;
    background: #ff2e2e;
    color: #fff;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 700;
    margin-left: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lista-pendientes {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pendiente-card {
    background: rgba(255,255,255,0.06);
    border-radius: 14px;
    padding: 14px;
    border-left: 5px solid;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 10px;
}

.pendiente-card.alta { border-left-color: #ff6b6b; }
.pendiente-card.media { border-left-color: #feca57; }
.pendiente-card.baja { border-left-color: #48dbfb; }

.pendiente-card.vencido {
    border-left-color: #ff2e2e;
    box-shadow: 0 0 14px rgba(255, 46, 46, 0.35);
    background: rgba(255, 46, 46, 0.08);
}

.pendiente-info {
    flex: 1;
    min-width: 0;
}

.pendiente-info div {
    margin-bottom: 4px;
    word-break: break-word;
}

.pendiente-actions {
    display: flex;
    flex-shrink: 0;
    gap: 6px;
}

.pendiente-actions button {
    padding: 8px 12px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    background: rgba(255,255,255,0.15);
    color: #fff;
    transition: 0.3s;
    font-size: 0.9rem;
    touch-action: manipulation;
    white-space: nowrap;
}

.pendiente-actions button:hover {
    background: rgba(255,255,255,0.3);
}

.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 16px;
}

.modal-content {
    width: 100%;
    max-width: 500px;
    padding: 22px;
    border-radius: 20px;
    background: rgba(30, 40, 60, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    max-height: 80vh;
    overflow-y: auto;
}

.modal-content h3 {
    margin-top: 0;
    font-size: 1.15rem;
}

.modal-content button {
    margin-top: 14px;
    padding: 12px 20px;
    border: none;
    border-radius: 10px;
    background: rgba(255,255,255,0.2);
    color: #fff;
    cursor: pointer;
    font-size: 1rem;
    width: 100%;
}

.hidden {
    display: none !important;
}

@media (max-width: 430px) {
    .container {
        margin: 10px;
        padding: 14px;
        border-radius: 16px;
    }
    h1 { font-size: 1.35rem; }
    .tab { padding: 10px 18px; font-size: 0.95rem; }
    .weekdays div { font-size: 0.75rem; padding: 6px 1px; }
    .day {
    aspect-ratio: 1;
    background: rgba(255,255,255,0.05);
    border-radius: 10px;
    padding: 5px 4px 4px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transition: 0.2s;
    position: relative;
    overflow: hidden;
    min-height: 52px;
    border: 1px solid transparent; border-radius: 8px; min-height: 48px; }
    .day-number { font-size: 0.8rem; }
    .dot { width: 6px; height: 6px; }
    .calendar-header h2 { font-size: 1.05rem; }
    .nav-btn { width: 38px; height: 38px; }
    .pendiente-card { flex-direction: column; }
    .pendiente-actions { width: 100%; justify-content: flex-end; }
    .badge-vencido { font-size: 0.65rem; padding: 2px 6px; }
}

.day.vencido-dia {
    border-color: #ff2e2e;
    box-shadow: inset 0 0 12px rgba(255, 46, 46, 0.35);
}

.day-summary {
    margin-top: 4px;
    font-size: 0.7rem;
    line-height: 1.15;
    color: rgba(255,255,255,0.8);
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.day-count {
    position: absolute;
    top: 4px;
    right: 4px;
    background: rgba(255,255,255,0.2);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.day-count.vencidos {
    background: #ff2e2e;
}

@media (max-width: 430px) {
    .day { min-height: 58px; padding: 5px 3px 3px; }
    .day-number { font-size: 0.78rem; }
    .day-summary { font-size: 0.62rem; -webkit-line-clamp: 2; }
    .day-count { width: 16px; height: 16px; font-size: 0.6rem; top: 2px; right: 2px; }
}